    public class RegistionController extends Controller {
    
    public void goRegion(){
            List<Record> provinceList = Regions.dao.listProvince();
            // String sql = "select * from es_regions where region_grade = 1";
			// 查询出省市区的级联
			setAttr("provinceList", provinceList);
        }
        
        
    public void getChildren(){
			String regionid = getPara("regionid");
			regionid = StringUtils.isNullOrEmpty(regionid)?"0":regionid;
			Integer iRegionid = Integer.valueOf(regionid);
			List<Record> list = Regions.dao.listChildrenByid(iRegionid);
			renderJson(list);
    }